Finding the Third Proportional to 67,042 and 99,403.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,042 : 99,403.50 = 99,403.50 : x
2. Step 2: Convert to fraction form
   67,042/99,403.50 = 99,403.50/x
3. Step 3: Cross multiply
   67,042x = 99,403.50 × 99,403.50
4. Step 4: Simplify right side
   67,042x = 9,881,055,812.25
5. Step 5: Solve for x
   x = 9,881,055,812.25/67,042
6. Step 6: Final answer
   x = 147,386.05